Alidad
01
a surveying instrument used with a plane table to sight distant objects, draw lines of sight, and measure angles
fackspråkligt
grammatisk information
Exempel
The surveyor used an alidad to accurately measure the property boundaries.
02
the upper rotating part of a theodolite, including the telescope and its attachments
fackspråkligt
Exempel
The geologist adjusted the alidad on the theodolite to take precise measurements of the rock formation.
LanGeek
